. Lessons with plants. Suggestions for seeing and interpreting some of the common forms of vegetation. Fig. of quince. blackberries and walnuts. We have already found(49) that some fruit-buds are simple and othersmixed. We now find that there is still a thirdclass, those which may be called co-terminal, be-cause they terminate the axial growth of theseason, and thereby cause a diffuse or deter-minate growth of the plant. 56. We can now interpret the winter twigs of 56 LESSONS WITS PLANTS the quince. Fig. 54 is such a twig. There is afruit-scar at d. We know that the shoot grewthe same
. Lessons with plants. Suggestions for seeing and interpreting some of the common forms of vegetation. Fig. of quince. blackberries and walnuts. We have already found(49) that some fruit-buds are simple and othersmixed. We now find that there is still a thirdclass, those which may be called co-terminal, be-cause they terminate the axial growth of theseason, and thereby cause a diffuse or deter-minate growth of the plant. 56. We can now interpret the winter twigs of 56 LESSONS WITS PLANTS the quince. Fig. 54 is such a twig. There is afruit-scar at d. We know that the shoot grewthe same year in which the fruit was borne;and this is further proved by the presence ofaxillary buds upon the shoot between c and fruit was borne at b. While this latter. Branch of the small-fruited hickory. fruit was growing, side shoots started off in twodirections, one extending to / and the other tog. During the following winter the tip of thebranch g died, and in the spring two shootssprung from it, one growing to d and bear-ing a fruit, and the other to e and not branch bf made a number of lateral shoots, THE OPENING OF THE BUDS, CONCLUDED 57 for its tip also had died before the growingseason began. How old, then, is the twig Suggestions.—Let the pupil also trace out the history of the hick-ory branch in Fig. 55. Fig. 160, may aid him. Let him explain ifthe zigzag and tortuous growth of any of the common trees and shrubsis in any way associated with this co-terminal type of fruit-bearing. XI. THE OPENING OF THE BUDS, CONCLUDED 57. If we look again at the opening appleshoot in Fig. 45, we may notice the method ofunrolling of the young leaves; for we havefound (50) that the parts in the bud are notonly very small, but curiously folded
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Keywords: ., bookauthorbai, bookcentury1900, bookdecade1900, booksubjectbotany
